Conduit-protection means



Patented Sept. 4, 1923.

.estaras 1,4%,718 risica.

vin'ilvjinnr. Homann, or'raieiannsvittn, curo.

coupure-recemment ijaneivs.

.Application filed December 14, 1922.' Serial No. @$6,806.

To all ttf/tam t may concern.

Be it known that l, D NinL F. HOLMAN, a citizen of the` United States, residing at Farmersville in the count f of Montofomer and State of Ohio, have invented certain new and useful improvements in Conduit- Protection Means, of which the following is a specification i n This invention relates to new and useful improvements in conduit protection .means such as the appliance disclosed in my United States Letters Patent No. 1,327,278v granted January 6th, 1920, and has particular reference to a protective device which may be readily installed in a cylindrical tile, pipe* of other liquid conduit.

The principal object of kmy invention is to provide a simple, economical and efficient Vappliance that my be easily installed in a wall of thc conduit that it may have a freey swinging movement therein.

One convenient form of'embodimentof my invention is Villustrated in the accompanying drawings7 of which Figure l is a side elevational view. partly in section, of

, a tile and my protective device, showingr how the latter is hingedly secured in the tileby side bolts. And Figure 2 is an end view of the same.

i Throughout the specification and 'drawings, similar reference characters denote corresponding parts. A

Tn a detailed description of theform of embodiment of my invention illustrated in the accompanying' drawings, the numeral 1 designates a cylindrical tile or other conduit in .which there is swingingly mounted, preferably near `rits outlet end a scoop-.shaped gate 2. The latter may he either cast oriy stamped from suitable metal in the form of a scoop to conform to the contour ofthe tile, v

and having a series of integral prongs 3 formed on its front end. Turneddown from the under side of the gate between the prongs 3 and a. short distance from their front ends, are spurs 4f which form a secondary barrier to the entrance of such small animals as rats, intor cellars yof buildings.

r(See Figures l and For the purpose of hingedly securing the rea-r portion of the gate 2 to the inside surface of the cylindrical conduit l, T have provided the following hinge structure. Passing through the tile wall are oppositelydisposed bolts 3, 8, each of which projectsl through a rear side edge of the gate 2. A washer 4 is provided on veach bolt between the gate and thetile to enforce the necessary clearance `between them.

These side bolts and washers connect the gate to the conduit in such a manner'that the gate may have a free vand uniform swinging movementr in the latter. They also form Y connecting means which firmly brace the gate lagainst `any side force that may be eX- erted by a large animal in its endeavor to work its way past the gate from the side.

Tn Figures l and 2 I have shown the gate 2 as beingr hingedly connected to the tile wall by sidebolts l0, l0. Each of .the latter passes through a respective rear side edge of the gate and through the tile wall,withla Vwasher l1 heilig provided on each bolt between the gate and vthetile to enforce the necessary clearance between them.v

The slotted lower ond of the gate 2 norvmally rests upon the bottom of the conduit, and is notV raised orfloated by the ordinary flow of water through the latter.

'lt will thus be seen that l have provided an appliance which is particularly adapted for easy installation in cylindricaly tiles, pipes, culverts and other conduits to prevent the entrance of animals in and through the latter. It is simple and economical in construction, andA may be readily installed in any form of cylindrical conduit;

r[ do not wish to be limited to the details of construction and' arrangement herein shown and described, and anyy changes or modifications may be made therein `within the scope of thesubjoincd claims.

Having described my invention, I claim:

.1. In cylindrical conduit, the combination with a gate therein whose periphery conforms to the contour of the conduit and which terminates at its front end in prongs which vrest upon the kbottom of the conduit, and ka bolt passinggthrough each rear side edge ofthe gate and the conduit Wall for hingedly securing the former to the latter.

2. In a cylindrical Conduit, the combinat-y tion with a scoop-shaped gate therein terminating at its front end in projections which rest upon the bottom of the conduit,

the Conduit Wall, and a Washer on each bolt Ybetween said gate and the conduit for the purpose specied.

n testimony whereof I have hereunto set my hand this 13th day of December, 1922.

, DANIEL F. HOLMAN. Titnes HOWARD S. SMITH. 

